Produkter från kemisk industri

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: ISO
Svarsdatum: den 1 feb 2019
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This standard specifies the preparation methods of the test samples for the qualitative and quantitative analysis of specific chemical substances in fireworks.

Note: the standard covers the following substances to be tested through series of ISO 22863

— hexachlorobenzene;

— lead and lead compounds;

— arsenic or arsenic compounds;

— mercury compounds;

— chlorates;

— white phosphorus;

— picrates or picric acid;

— zirconium with a particle size of less than 40 μm

— content of nitrogen in nitrocellulose

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: ISO
Svarsdatum: den 1 feb 2019
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This standard specifies the test method for the determination of Hexachlorobenzene (HCB) in pyrotechnic compositions by Gas Chromatography.

The limit of detection depends on the substance to be determined, the equipment used, the quality of chemicals used for the extraction of the sample, and the clean-up of the extract.

Under the conditions specified in this International Standard, a limit of detection of 1 mg/kg (expressed as dry matter) can be achieved.

Ämnesområden: Sprängämnen. Fyverkerier
Kommittébeteckning: SIS/TK 443 (Pyroteknik)
Källa: ISO
Svarsdatum: den 1 feb 2019
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This standard specifies the test method for determination of the lead content in pyrotechnic compositions of fireworks by flame atomic absorption spectrophotometry, with a minimum detection limit of 10mg/kg.

NOTE It is generally recommended to perform a simple preliminary qualitative test to check whether a quantitative analysis is required. See annex A.

Ämnesområden: Träskyddande kemikalier
Kommittébeteckning: SIS/TK 182 (Trä)
Källa: CEN
Svarsdatum: den 11 feb 2019
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This document specifies a method for determining the performance of a preservative, applied to the upper surface of the mortar test specimens, in preventing the growth of dry rot through the treated mortar when exposed to the test fungus.

This method is only applicable to masonry fungicides applied as a true solution of the preservative in water or dilute oil in water emulsion. It is not applicable to rods, pastes and other similar preservative types. This method is applicable to preservatives applied to masonry by brushing, spraying and/or injection techniques or mixed into rendering and plastering mortar for masonry.